6514666464 has 96 divisors (see below), whose sum is σ = 18280007424. Its totient is φ = 2026449920.

The previous prime is 6514666463. The next prime is 6514666469. The reversal of 6514666464 is 4646664156.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6514666463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54547 + ... + 126509.

It is an arithmetic number, because the mean of its divisors is an integer number (190416744).

Almost surely, 2^6514666464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6514666464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9140003712).

6514666464 is an abundant number, since it is smaller than the sum of its proper divisors (11765340960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6514666464 is a wasteful number, since it uses less digits than its factorization.

6514666464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72040 (or 72032 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 48.

The square root of 6514666464 is about 80713.4837805927. The cubic root of 6514666464 is about 1867.6581840134.

The spelling of 6514666464 in words is "six billion, five hundred fourteen million, six hundred sixty-six thousand, four hundred sixty-four".